From b7ea71e6e39dfda903e1060e1b254ce0002fcf0d Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marcelina=20Ko=C5=9Bcielnicka?= Date: Tue, 30 Mar 2021 04:00:45 +0200 Subject: [PATCH] equiv: Suggest running async2sync or clk2fflogic where appropriate. See #2713. --- passes/equiv/equiv_induct.cc | 5 ++++- passes/equiv/equiv_simple.cc | 8 ++++++-- 2 files changed, 10 insertions(+), 3 deletions(-) diff --git a/passes/equiv/equiv_induct.cc b/passes/equiv/equiv_induct.cc index 37aec50cd..5f14416da 100644 --- a/passes/equiv/equiv_induct.cc +++ b/passes/equiv/equiv_induct.cc @@ -55,7 +55,10 @@ struct EquivInductWorker for (auto cell : cells) { if (!satgen.importCell(cell, step) && !cell_warn_cache.count(cell)) { - log_warning("No SAT model available for cell %s (%s).\n", log_id(cell), log_id(cell->type)); + if (RTLIL::builtin_ff_cell_types().count(cell->type)) + log_warning("No SAT model available for async FF cell %s (%s). Consider running `async2sync` or `clk2fflogic` first.\n", log_id(cell), log_id(cell->type)); + else + log_warning("No SAT model available for cell %s (%s).\n", log_id(cell), log_id(cell->type)); cell_warn_cache.insert(cell); } if (cell->type == ID($equiv)) { diff --git a/passes/equiv/equiv_simple.cc b/passes/equiv/equiv_simple.cc index 408c5a793..8d9e870da 100644 --- a/passes/equiv/equiv_simple.cc +++ b/passes/equiv/equiv_simple.cc @@ -184,8 +184,12 @@ struct EquivSimpleWorker for (auto cell : problem_cells) { auto key = pair(cell, step+1); - if (!imported_cells_cache.count(key) && !satgen.importCell(cell, step+1)) - log_cmd_error("No SAT model available for cell %s (%s).\n", log_id(cell), log_id(cell->type)); + if (!imported_cells_cache.count(key) && !satgen.importCell(cell, step+1)) { + if (RTLIL::builtin_ff_cell_types().count(cell->type)) + log_cmd_error("No SAT model available for async FF cell %s (%s). Consider running `async2sync` or `clk2fflogic` first.\n", log_id(cell), log_id(cell->type)); + else + log_cmd_error("No SAT model available for cell %s (%s).\n", log_id(cell), log_id(cell->type)); + } imported_cells_cache.insert(key); } -- 2.30.2